.bg{
    height: 450px;
    background: url(../images/bg.jpg) no-repeat;
    /* background-size: contain; */
    background-position: center;
}
/* =============================================== */
/* 轮播图 */
html,
body {
    width: 100%;
    height: 100%;
}
/* ----------------------------------------------- */
.banner {
    width: 1100px;
    height:420px;
    /* background: black; */
    position: relative;
    top: 30px;
    /* =============位置问题============== */
    left: 0px;
    /*overflow:hidden;
*/
}

.group {
    /* width: 1100px;
    height:380px; */
    overflow: hidden;
    position: relative;
}

.group>li {
    width: 1100px;
    height:380px;
   
    list-style: none;
    display: none;
}



.group .current {
    display: block;
}
.group  img{
    width: 100%;
    height: 100%;
}

.banner>span {
    width: 20px;
    height: 20px;
    display: inline-block;
    background: rgba(27 19 19 / 50%);
    color: #fff;
}

.banner .left {
    position: absolute;
    left: 0;
    top: 190px;
}

.banner .right {
    position: absolute;
    left: 1080px;
    top: 190px;
}

.slide {
    width: 1000px;
    height: 20px;
    position: absolute;
    top: 380px;
    left: 0px;
    /* background: powderblue; */
    list-style: none;
    display: flex;
    justify-content: center;
}

.slide>li {
    width: 250px;
    height: 20px;
    background: #fff;
    opacity: 0.5;
    float: left;
    margin-right: 10px;
    font-size: 15px;
    text-align: center;
    line-height: 20px;
  
}

.slide .now {
    background: red;
   
    opacity: 0.5;
}
/* ========================================= */
/* 顶部开始 */
/* <!--wrap-operate top内容 图片顶部 --> */
.top{
    height: 360px;
}
.top-pic{
    display: flex;
    justify-content: space-evenly;
}
.top-pic>img{
    width: 380px;
    height: 220px;
}
/*wrap-operate 中部 */
.wrap{
    /* height: 260px; */
    text-align: center;
    /* background-color:violet; */
    
}
.wrap img{
   
    margin-top: 20px;
}

/* brand item 商品展示 */
.brand{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.item{
    margin-top: 18px;
    width: 570px;
    height: 300px;

}
.item img{
    width: 570px;
    height: 250px;
}
.item .br-item1{
    font-size: 26px;
    color: #f03867;
}
/*结束  */